70404371 has 4 divisors (see below), whose sum is σ = 70543200. Its totient is φ = 70265544.

The previous prime is 70404359. The next prime is 70404391. The reversal of 70404371 is 17340407.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70404371 - 2⁶ = 70404307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70404371.

It is not an unprimeable number, because it can be changed into a prime (70404331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68651 + ... + 69668.

It is an arithmetic number, because the mean of its divisors is an integer number (17635800).

Almost surely, 2^70404371 is an apocalyptic number.

70404371 is a deficient number, since it is larger than the sum of its proper divisors (138829).

70404371 is a wasteful number, since it uses less digits than its factorization.

70404371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138828.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 70404371 is about 8390.7312553794. The cubic root of 70404371 is about 412.9205916428.

Adding to 70404371 its reverse (17340407), we get a palindrome (87744778).

It can be divided in two parts, 7040 and 4371, that added together give a palindrome (11411).

The spelling of 70404371 in words is "seventy million, four hundred four thousand, three hundred seventy-one".